20174919975

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{983}}^1$

素因数の和:1246

約数の個数: 144

約数和(自身を含む): 42104305152

約数和(自身を除く): 21929385177

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 83, 105, 157, 175, 225, 249, 315, 415, 471, 525, 581, 747, 785, 983, 1099, 1245, 1413, 1575, 1743, 2075, 2355, 2905, 2949, 3297, 3735, 3925, 4915, 5229, 5495, 6225, 6881, 7065, 8715, 8847, 9891, 11775, 13031, 14525, 14745, 16485, 18675, 20643, 24575, 26145, 27475, 34405, 35325, 39093, 43575, 44235, 49455, 61929, 65155, 73725, 81589, 82425, 91217, 103215, 117279, 130725, 154331, 172025, 195465, 221175, 244767, 247275, 273651, 309645, 325775, 407945, 456085, 462993, 516075, 571123, 586395, 734301, 771655, 820953, 977325, 1080317, 1223835, 1368255, 1388979, 1548225, 1713369, 2039725, 2280425, 2314965, 2855615, 2931975, 3240951, 3671505, 3858275, 4104765, 5140107, 5401585, 6119175, 6841275, 6944895, 8566845, 9722853, 11574825, 12809473, 14278075, 16204755, 18357525, 20523825, 25700535, 27007925, 34724475, 38428419, 42834225, 48614265, 64047365, 81023775, 89666311, 115285257, 128502675, 192142095, 243071325, 268998933, 320236825, 448331555, 576426285, 806996799, 960710475, 1344994665, 2241657775, 2882131425, 4034983995, 6724973325, 20174919975]

約数ペア:

[(1, 20174919975), (3, 6724973325), (5, 4034983995), (7, 2882131425), (9, 2241657775), (15, 1344994665), (21, 960710475), (25, 806996799), (35, 576426285), (45, 448331555), (63, 320236825), (75, 268998933), (83, 243071325), (105, 192142095), (157, 128502675), (175, 115285257), (225, 89666311), (249, 81023775), (315, 64047365), (415, 48614265), (471, 42834225), (525, 38428419), (581, 34724475), (747, 27007925), (785, 25700535), (983, 20523825), (1099, 18357525), (1245, 16204755), (1413, 14278075), (1575, 12809473), (1743, 11574825), (2075, 9722853), (2355, 8566845), (2905, 6944895), (2949, 6841275), (3297, 6119175), (3735, 5401585), (3925, 5140107), (4915, 4104765), (5229, 3858275), (5495, 3671505), (6225, 3240951), (6881, 2931975), (7065, 2855615), (8715, 2314965), (8847, 2280425), (9891, 2039725), (11775, 1713369), (13031, 1548225), (14525, 1388979), (14745, 1368255), (16485, 1223835), (18675, 1080317), (20643, 977325), (24575, 820953), (26145, 771655), (27475, 734301), (34405, 586395), (35325, 571123), (39093, 516075), (43575, 462993), (44235, 456085), (49455, 407945), (61929, 325775), (65155, 309645), (73725, 273651), (81589, 247275), (82425, 244767), (91217, 221175), (103215, 195465), (117279, 172025), (130725, 154331)]